Purina Veterinary Diets UR Urinary Formula is for the nutritional treatment and dissolution of struvite stones with urine acidifying properties and low level of magnesium.

It is available in 3kg and 12kg bags.

The role of dietary management in struvite-related Canine Lower Urinary Tract Diseases (LUTD) is to provide a proper balance of total nutrients while meeting the special dietary needs of the patient, encouraging acidification of urine which can help reduce the formation of struvite crystals and stones while meeting the nutritional needs of the animal.

UR provides complete and balanced nutrition for adult maintenance and have been formulated to achieve the following characteristics: increased potassium - avoids risks of hypokalemia, high digestibility - compensate for loss of appetite in some dogs that helps control urinary tract infection through the target Urinary pH : 6.0+/-0.2.

Important: not all cases of canine lower urinary tract disease are associated with struvite crystals or stones so it is important to consult your vet and conduct appropriate tests before making a change to your pet's diet.

We offer a range of delivery options:

Our standard delivery is free by Royal Mail 2nd Class - there are some exceptions and you can see these on our Delivery page. These include refridgerated items and aerosols which have to be sent via our Next Day Courier service.

We also offer delivery by Royal Mail 1st Class or a Next Day Courier service for a small fee (for items in stock ordered before 12pm Monday to Friday - excludes Saturday delivery).

Orders under £20 have a £2.50 handling fee automatically added.

Food deliveries weighing 2kg and over ordered before 12pm (Monday to Thursday) will be delivered next working day by courier - Monday to Friday - excludes Saturday delivery. Orders placed on a Friday, Saturday and Sunday will be delivered on a Tuesday. Orders weighing over 6kg are sent free.